How many hours, and will you have a car, or a motorcycle?
It would be a shame to only have a few hours in and around Taos. I used to spend a week there in the fall for several years.
Is your interest street scenes, landscapes, Indian culture, wildlife, or what?
You might want to start with St Francis de Asis church just south of Taos.http://en.wikipedia.org/wiki/San_Francisco_de_Asis_Mission_Church